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Mon, 23 Nov 2020 13:31:06 -0800 (PST) To: "Michael Kerrisk (man-pages)" Cc: linux-man , linux-kernel , Guo Ren , linux-csky@vger.kernel.org, Arnd Bergmann From: "Alejandro Colomar (man-pages)" Subject: set_thread_area.2: csky architecture undocumented Message-ID: <014e670b-2a11-3deb-4e7e-bfe9defd8597@gmail.com> Date: Mon, 23 Nov 2020 22:31:05 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-csky@vger.kernel.org Hi Michael, SYNOPSIS #include #if defined __i386__ || defined __x86_64__ # include int get_thread_area(struct user_desc *u_info); int set_thread_area(struct user_desc *u_info); #elif defined __m68k__ int get_thread_area(void); int set_thread_area(unsigned long tp); #elif defined __mips__ int set_thread_area(unsigned long addr); #endif Note: There are no glibc wrappers for these system calls; see NOTES. $ grep -rn 'SYSCALL_DEFINE.*et_thread_area' arch/csky/kernel/syscall.c:6: SYSCALL_DEFINE1(set_thread_area, unsigned long, addr) arch/mips/kernel/syscall.c:86: SYSCALL_DEFINE1(set_thread_area, unsigned long, addr) arch/x86/kernel/tls.c:191: SYSCALL_DEFINE1(set_thread_area, struct user_desc __user *, u_info) arch/x86/kernel/tls.c:243: SYSCALL_DEFINE1(get_thread_area, struct user_desc __user *, u_info) arch/x86/um/tls_32.c:277: SYSCALL_DEFINE1(set_thread_area, struct user_desc __user *, user_desc) arch/x86/um/tls_32.c:325: SYSCALL_DEFINE1(get_thread_area, struct user_desc __user *, user_desc) See kernel commit 4859bfca11c7d63d55175bcd85a75d6cee4b7184 I'd change - #elif defined __mips__ + #elif defined(__mips__ || __csky__) and then change the rest of the text to add csky when appropriate. Am I correct? Thanks, Alex